package jdbc2;

import com.sun.org.apache.bcel.internal.generic.IF_ACMPEQ;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;

public class JDBCDemo3 {
    public static void main(String[] args) throws Exception {
        Class.forName("com.mysql.cj.jdbc.Driver");
        Connection conn = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root",
                "20030501");
        Statement stmt = conn.createStatement();
        /*
        * 根据用户名修改用户密码
        * UPDATE userinfo SET password = "666666" WHERE username = "GGBond";
        * */
        String sql = "UPDATE userinfo SET password = \"666666\" WHERE username = \"GGBond\";";
        int num = stmt.executeUpdate(sql);
        if(num > 0){
            System.out.println("修改成功");
        }else {
            System.out.println("修改失败");
        }
        System.out.println(num);
        conn.close();
    }
}
